return {
  "000_base",
  "003_100_to_110",
  "004_110_to_120",
  "005_120_to_130",
  "006_130_to_140",
  "007_140_to_150",
  "008_150_to_200",
  "009_200_to_210",
  "010_210_to_211",
  "011_212_to_213",
  "012_213_to_220",
  "013_220_to_230",
  "014_230_to_270",
  "015_270_to_280",
  "016_280_to_300",
  "017_300_to_310",
  "018_310_to_320",
  "019_320_to_330",
  "020_330_to_340",
  "021_340_to_350",
  "022_350_to_360",
  "023_360_to_370",
  "024_380_to_390",
  "025_390_to_3100",
}
